CAMERON DIAZ and DJIMON HOUNSOU

The pair were spotted kissing at a Los Angeles nightclub.

Despite a spokesperson for the 34-year-old actress insisting she and 42-year-old Hounsou are "just friends", an onlooker says, "They were totally smitten with each other and were having a lot of fun.

"They hit the dancefloor for a spot of dirty dancing. Both had big smiles on their faces."

Source: WENN